Syon Abbey

Coordinates: 51°28′36.2″N 0°18′42.7″W / 51.476722°N 0.311861°W / 51.476722; -0.311861

(Also known as Syon Abbey, but see discussion below)

Syon Monastery (or Sion), was a monastery of the Bridgettine Order founded in 1415 which stood until its demolition in the 16th c. on the left (northern) bank of the River Thames within the parish of Isleworth, in the county of Middlesex on or near the site of the present Georgian mansion of Syon House. It was named after the Biblical Holy “City of David which is Zion” (1 King's 8:1), built on the eponymous Mount Zion (or Sion Syon etc.). Although always referred to in early documents as a Monastery, it has in modern times come to be referred to , somewhat incorrectly therefore, as an Abbey, due to its having been presided over by an Abbess. The present article proposes for correctness to adopt the ancient terminology of Monastery, thereby following the usage of the standard reference on Syon by George James Aungier, published in 1840 (see Sources below).


Syon Monastery was built as part of King Henry V's “The King's Great Work” centred on Sheen Palace (renamed Richmond Palace in 1501). The royal manor of Sheen lay on the right (south), Surrey, bank of the River Thames, opposite the parish of Twickenham and the royal manor of Isleworth on the left, Middlesex, bank. Sheen had been a favourite residence of the last Plantagenet king Richard II(1377–1399) and his beloved wife Anne of Bohemia. When Anne died there of plague in 1394, Richard cursed the place where they had found great happiness and razed the palace to the ground. His throne was usurped by his cousin Henry Bolingbroke, Duke of Lancaster, who ruled as Henry IV(1399–1413). Henry IV had been involved in the murder of Richard in 1400, and in that of Archbishop Richard le Scrope, and made a vow to expiate his guilt by founding 3 monasteries, which vow he died before fulfilling. Whilst Henry IV had shown little interest in the ruined Sheen, his son Henry V(1413–1422) saw its reconstruction as a means of emphasising the dynastic link between his own House of Lancaster and that of Plantagenet, of unquestioned legitimacy, and decided at the same time to found the 3 monasteries pledged by his father all within one great building scheme, known as “The King's Great Work”. Thus the “Great Work” commenced in the winter of 1413-14, comprising the new Sheen Palace, and nearby the following 3 monasteries:

  • A Monastery of the Celestine Order. Established probably in Isleworth Manor. This monastery was of French monks, who refused to pray for Henry V following his warring with France, probably at Agincourt in 1415, and was therefore dissolved by the King almost immediately after its foundation. This monastery probably occupied the site in Isleworth to which Syon Monastery moved in 1431.
  • The House of Jesus of Bethlehem of Sheen, of the Order of Carthusians (1414)Sheen Priory. Built within Sheen Manor, to the north of the new palace.
  • The Monastery of St Saviour and St Bridget of Syon, of the Order of St Augustine (1415) Syon Monastery, the subject of this article . The first and original site of this monastery was probably almost due west of Sheen Palace, across the river, on the left bank of the Thames in Twickenham Parish.

The first stone of Syon Monastery was laid by King Henry V himself on 22 February 1415, in the prescence of Richard Clifford, Bishop of London. It was not until 9 days later on 3 March 1415 that the King's founding charter was signed at Westminster. The exact location of this original plot is unknown, but it was certainly in the parish of Twickenham, the most northerly river frontage of which lies directly west across the Thames from Sheen Palace. Aungier states it is said to have been in the meadows which at the time of his publication in 1840 were the property of the Marquis of Ailsa, “formerly called Isleworth Park or Twickenham Park”. The dimensions however of the plot were specified in the charter, and seem to comprise a trapezoid the longest side of which fronted the river:


The foundation charter states: We we will and decree that it shall be called “The Monastery of St Saviour and St Bridget of Syon, of the Order of St Augustine” through all successive ages. (Monasterium in the original Latin). It is interesting to note that this name was quoted slightly differently by the Abbess and Convent in their petition of 1431 as “' The Monastery of St Saviour and the Saints Mary the Virgin and Bridget of Syon of the Order of St Augustine and of St Saviour”. The funerary brass of Agnes Jordan, Syon's last pre-reformation Abbess, describes her as “Sometyme abbesse of the monasterye of Syon”.

Biblical Sion

There are numerous references to Sion in the Latin Bible, called Zion in the English Authorised Version, almost all of which are in the Old Testament. Mount Zion was the citadel of Jerusalem, which David captured from the Jebusites c. 1000 BC, as is clear from II Samuel, 5:7 David took the stronghold of Zion: the same is the city of David. It was there that David, 2nd King of Israel, established the capital of his kingdom of Israel, and upon which citadel it was that his son Solomon built the Temple, in which he placed the Ark of the Covenant, which was the dwelling place of God (II Samuel 7:6). It is thus the holiest site of Judaism and highly revered by Christians. Psalm 87:2 states The Lord loveth the gates of Zion; Joel 3:17 states I am the Lord your God dwelling in Zion my holy mountain. The Romans razed the Jewish Temple to the ground in 70 AD and following the rise of Islam from 622, and the muslim capture of the Holy Land in 636, the Muslims built on Mount Zion their Muslim shrine The Dome of the Rock, which still stands today. The Crusaders recaptured Jerusalem for the Christians in 1099 and the Knights Templar built a round church near the site of the old Jewish Temple. Following the Muslim recapture of Jerusalem a century later, the site has been unavailable for formal Jewish or Christian prayer.


The monastery was founded “of the order of St Augustine, called St Saviour... ...according to the regular institutes (i.e. regulations/rule) of the religious order by the aforesaid Bridget of Heaven inspired, founded and instituted...” The charter previously stated the foundation to be “Especially in honour of the most holy St Bridget, who as is acknowledged by sufficient evidence, by divine inspiration founded a religious order under her name and obtained from Heaven that in whatsoever kingdom a monastery of the same religious order should be founded there peace and tranquility by the mediation of the same, should be perpetually established”. St Bridget was a visionary, and is supposed to have seen the Risen Christ, displaying his wounds. The Bridgettine order was a modified order of St Augustine, with particular devotions to the Passion of Christ and the honour of The Virgin Mary. The Bridgettines had first been brought to England from Wastein in Sweden by Henry Lord Fitz-Hugh, who suggested to Henry V that he should grant the order one of his planned 3 new monastic foundations.


The King's original foundation consisted of 85 persons, which no doubt ideally would all have been women were there not practical need of men to perform holy sacraments for the nuns, who were barred by the Catholic Church from the performance of such sacraments as Holy Communion and Confession. Men were also required to assist with houshold duties requiring virile strength. The full complement was as follows:

Women (60):

  • 1 Abbess
  • 59 Nuns

Men (25):

  • 1 Confessor General
  • 12 Priests
  • 4 Deacons
  • 8 Lay Brethren

The different sexes were “to dwell in separate habitations, to wit the said abbess and sisters within one court by themselves and the said confessor and brothers in a separate court by themselves, within the same monastery”. The legal corporate entity was “The Abbess and Convent” which could transact business by affixing its single corporate seal. The Convent (from Latin con-venio, to come together) consisted of the Abbess and nuns together with the Confessor and all the religious men. Clearly the Abbess was the overall presiding officer.

Expansion and Relocation

Sometime before 1431 the Abbess and Convent received permission by letters patent from King Henry VI (1422–1461), the son of the founder and who was particularly favourable to Syon, having made it several grants and confirmations in rapid succession, to move the monastery to a new site of their own choosing some mile and a half downstream to a riverbank site within Isleworth parish. The land in question moved to had been in the monastery's ownership since 1422, in which last year of the life of Henry V that king had by Act of Parliament separated the manor of Isleworth from the Duchy of Cornwall and given it to Syon. The reason for the move was to gain more space, as is made clear from the letters patent:

The danger of the situation referred to may have been due to proximity to the river, or possibly even spiritual danger to the inmates due to a too close intermingling of the sexes.

New Building

The letters patent authorising the move, which were ratified by a grant by the King dated 1431, make clear that some of the new buildings had already been started and indeed completed:

It seems that this building, apparently living quarters or “mansion” must have been started several years before 1431 to have been described as “completed” in the letters of patent issued before 1431

There was however another building, possibly the new Church-building itself, which still had not been completed 11 years later, by 1442, when Henry VI issued further letters patent granting the Abbess and Convent special privileges for the transport of building materials from the King's warren in the royal manor of Sheen across the river to Isleworth:

The new site of the church building itself is now believed, after recent archaeological work, to lie partly underneath and to the east of the present Georgian mansion of Syon House. (see below: Archaeological Excavations).


Following Henry VIII's decision in 1534 to throw off the papal yoke, many of the inmates of Syon expressed themselves favourable to Henry' s supremacy over the English Church, and even converted recalcitrant monks from other monasteries to do likewise. Many however refused to acknowledge the King's new title. Due to the actions of one Syon monk named Richard Reynolds, an eminent doctor in divinity later canonised, the King made Syon an object of special vengeance. Reynolds had facilitated a meeting at Syon between Sir Thomas More, the King's chief opponent in his assumption of Supreme Governorship, and Elizabeth Barton, the mystic “Holy Maid of Kent” at which More was fuelled with supposed divine revelations further supporting his opposition. Thomas Cromwell, the King's minister in effecting the Dissolution, had visited Syon in person to obtain expressions of acceptance of supremacy from the inmates, but seems to have met an antagonistic reception from one of the monks at the front-door grate. He left 2 of his agents, Thomas Bedyll and Master Leightone, to obtain the required acceptances from the nuns and monks of the King's new status. Bedyll reported that “the bretherne stand stif in thaire obstinacy as you left thaim”. Two were sent to the Bishop of London, within whose diocese Syon lay, apparently for a course of conversion, whilst 2 Church of England clerics were brought in to convert another two Syon monks who were particularly obstinate, Whitford and Little. On the following day the King himself sent 4 different Church of England clerics to Syon for the same purpose, again without success. The agent Bedyll then took the recalcitrant Whitford for a walk in the monastery garden to further persuade him “both with faire wordes and with foule” to convert. He then resorted to what appears a classic use of blackmail, accusing Whitford of having “used bawdy wordes to diverse ladys at the tymes of thaire confession”, which would bring him “to the greate shame of the world”. Still he did not convert, having “a brasyn forehead which shameth at no thing”. Whitford and Little were also reported, whilst hearing confessions through a hole in the wall of persons external to the monastery, to have denounced the King's new title as Supreme Governor, and his divorce and remarriage, for which reason it was proposed to Cromwell that the confessional grille be bricked-up. The nuns were more easily won over however, and were sat down together in the chapter house of Syon in the presence of the Bishop of London and their own male confessor. All who accepted the King's new title ware asked to remain seated, whilst those opposed were asked to leave the chamber. All remained seated, signifying their acceptance, no doubt reluctantly. The nuns thereupon in resignation to their new status sent a special request to Cromwell that he should “be a good maister unto thaim and to thaire house, as thaire special trust is in you”. It seems they were then confident in the continuation of their monastery. One nun however named Agnes Smythe “a sturdy dame and a wylful” made a show of some resistance in persuading her sister nuns not to hand over the convent seal, which had been required by Cromwell's agents to seal a declaration of conversion to be signed by the abbess and nuns.

On 4 May 1535 brother Richard Reynolds was hanged, drawn and quartered at Tyburn for denying the King's supremacy, which martyrdom gained him his canonisation from Rome. The monastery finally surrendered to the King's commissioners in 1539 and the community was expelled. The annual net revenues were then reported to be £1,731. A very large pension of £200 was given to the abess Agnes Jordan and one of £6 each to the junior nuns. The male Confessor-General received a pension of £15, the junior monks receiving £6 to £8 each.


The expelled community unlike many others did not disband and separate, but exiled itself to the Netherlands, from where they were recalled briefly to Syon following the accession of the catholic Queen Mary(1553–1558) in 1553. The buildings had remained intact during the interval. On the accession of Queen Elizabeth(1558–1603) in 1558 an Act of Parliament was passed annexing and re-dissolving certain religious houses, including Syon, whereupon the nuns obtained royal license to leave England, eventually settling in Lisbon, Portugal, where they arrived in 1594, after having experienced many troubles and afflictions in travels through France and Spain.

Return to England

The Lisbon community returned to England in 1861, settling first in Spetisbury, Dorset, moving in 1887 to Chudleigh, Devon and then in 1925 to its current (2010) location near South Brent, Devon. The religious community, or Convent, of Syon has the distinction of being the only English one that survived the reformation in unbroken form to the present day (2010). In 2004, the remaining mediæval books in the convent's collection were deposited for safe-keeping with the University of Exeter Library. A large piece of sculptured stonework from the monastery's remains was recently returned to them ceremoniously by the Duke of Northumberland, owner of Syon House.

Replacement by Mansion of Syon House

After dissolution, the estate came into the possession of Edward Seymour, 1st Duke of Somerset, Lord Protector to the young Edward VI, who started work on building the first Syon House in the Italian Renaissance style, apparently incorporating the west end of the monastery church. Following the Duke's execution for treason in 1552, it was confiscated for the crown under Queen Mary, who briefly re-established the community there during 1557 to 1558. Her successor Queen Elizabeth I granted in 1594 a lease of the manor to Henry Percy, 9th Earl of Northumberland on his marriage to Dorothy Devereux the younger daughter of Walter Devereux, 1st Earl of Essex, who later received a grant of the freehold from King James I in 1604. The square house seen today is a Georgian remodelling of the first house by Hugh Percy, 1st Duke of Northumberland(1714–1786), in about 1760. The first Duke was born Hugh Smithson, and married Lady Elizabeth Seymour (daughter and heiress of Algernon Seymour, 7th Duke of Somerset(d.1750), a direct descendant of Protector Somerset), whose grandmother Lady Elizabeth Percy(d.1722) was the heiress of the 15th and last Percy Earl of Northumberland, from whom Syon House thus devolved onto the first Duke of Northumberland. In 1750, 10 years after his marriage, he adopted the name Percy in lieu of his patronymic.

Resting place for coffin of Henry VIII

On 14 February 1547 the coffin of Henry VIII lay overnight at Syon, en-route from Westminster for burial at Windsor. Twelve years before in 1535 a Franciscan friar named Peto had preached before the King at Greenwich “that God's judgements were ready to fall upon his head and that dogs would lick his blood, as they had done to Ahab”. The phrophecy was said to have been fulfilled during this night at Syon, when some “corrupted matter of a bloody colour” fell from the coffin to the floor.

Archaeological excavations

Syon House remains in 2010 the London seat of the Dukes of Northumberland. Foundations of the Monastery Church lying to the immediate east of Syon House were partially uncovered in excavations starting in summer 2003, made by Channel 4's Time Team programme, broadcast on 4 January 2004. The programme highlighted mediaeval masonry blocks in the foundation wall of the north Wing as evidence that the west end of the church may have been incorporated into the current house built by Protector Somerset. However, subsequent sweeping of the floor demonstrated that the Tudor floor surface continued underneath the wall, suggesting that the mediaeval blocks were simply reused when this wing was rebuilt in 1820. So far there is no evidence on the exact length of the Church or whether it does actually extend under Syon House. Further excavations by Birkbeck, University of London have continued from 2004-2010.

  • Aungier, George James. The History and Antiquities of Syon Monastery, the Parish of Isleworth and the Chapel of Hounslow; Compiled from Public Records, Ancient Manuscripts, Ecclesiastical and Other Authentic Documents. London, 1840.
  • Cloake, John. Richmond Palace, its History and its Plan. London, 2001